<template>
    <section>
        <!--工具条-->
        <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
            <el-form :inline="true" :model="filters">
                <el-form-item>
                    <el-input v-model="filters.keyWords" placeholder="关键字"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" v-on:click="search">查询</el-button>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="handleAdd">新增</el-button>
                </el-form-item>
            </el-form>
        </el-col>

        <!--列表

          @selection-change 复选框的点击事件
        -->
        <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
            <el-table-column type="selection" width="55">
            </el-table-column>
            <el-table-column type="index" width="60">
            </el-table-column>
            <el-table-column prop="name" label="名称" width="220" sortable>
            </el-table-column>
            <el-table-column prop="sn" label="编号" width="120" sortable>
            </el-table-column>
            <el-table-column prop="state" label="状态" width="100" sortable>
                <template scope="scope">
                    <span v-if="scope.row.state === 0" style="color: green">启用</span>
                    <span v-else-if="scope.row.state === -1" style="color: red">禁用</span>
                    <span v-else style="color: dimgrey">未知</span>
                </template>
            </el-table-column>
            <el-table-column prop="manager.username" label="管理员" width="180" sortable>
            </el-table-column>
            <el-table-column prop="parent.name" label="上级部门" width="180" sortable>
            </el-table-column>
            <el-table-column label="操作">
                <template scope="scope">
                    <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
                    <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
                </template>
            </el-table-column>
        </el-table>

        <!--工具条-->
        <el-col :span="24" class="toolbar">
            <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
            <el-pagination layout="prev, pager, next"
                           @current-change="handleCurrentChange"
                           :page-size="pageSize"
                           :total="total"
                           :current-page="currentPage"
                           style="float:right;">
            </el-pagination>
        </el-col>

        <!--新增/编辑界面-->
        <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
            <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
                <el-form-item label="名称" prop="name">
                    <el-input v-model="saveForm.name" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="编号" prop="sn">
                    <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="状态">
                    <el-radio-group v-model="saveForm.state">
                        <el-radio class="radio" :label="0">启用</el-radio>
                        <el-radio class="radio" :label="-1">禁用</el-radio>
                    </el-radio-group>
                </el-form-item>
                <el-form-item label="管理员">
                    <el-select v-model="saveForm.manager" clearable value-key="id" placeholder="请选择">
                        <!--下拉选项
                          :key=""  //唯一标识
                          :label 选择之后展示到选择框中的值
                          :value 选中之后绑定给模型层的值  如果要绑定对象给模型层 有一个大坑
                             必须要写  value-key="id"
                        -->
                        <el-option
                                v-for="item in employees"
                                :key="item.id"
                                :label="item.username"
                                :value="item">
                            <span style="float: left">{{ item.username }}</span>
                            <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="上级部门">
                    <el-cascader v-model="saveForm.parent"
                                 :options="deptTree"
                                 :props="{
							   checkStrictly: true,
							   label:'name',
							   value:'id'
							}"
                                 clearable></el-cascader>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click.native="saveFormVisible = false">取消</el-button>
                <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
            </div>
        </el-dialog>
    </section>
</template>

<script>

    export default {
        data() {
            return {
                title:"",
                filters: {
                    keyWords: ''
                },
                departments: [],
                employees:[],//部门管理源下拉列表基础数据
                deptTree:[],
                total: 0,
                currentPage: 1,
                pageSize:10,

                listLoading: false,
                sels: [],//列表选中行

                saveFormVisible: false,//新增界面是否显示
                saveLoading: false,
                saveFormRules: {
                    name: [
                        { required: true, message: '请输入姓名', trigger: 'blur' }
                    ],
                    sn: [
                        { required: true, message: '请输入编号', trigger: 'blur' }
                    ]
                },
                //新增界面数据
                saveForm: {
                    id:null,
                    name: "",
                    sn: "",
                    state: 0,
                    manager: null,
                    parent: null
                }
            }
        },
        methods: {
            search(){//做高级查询,一定要定位到第一页
                this.currentPage = 1;
                this.getDepartments();
            },
            handleCurrentChange(val) {
                this.currentPage = val;//点击页码之后给模型层赋值
                this.getDepartments();
            },
            //获取部门列表
            getDepartments() {
                let para = {
                    currentPage: this.currentPage,
                    pageSize: this.pageSize,
                    keyWords: this.filters.keyWords



                };

                this.listLoading = true;//开启忙等框
                //NProgress.start();
                //发送axios请求从后端  8080 拿数据
                this.$http.post("/dept/page",para)
                    .then(result=>{
                        this.listLoading = false;//开启忙等框
                        console.log(result);//
                        result = result.data;//PageList
                        this.departments = result.rows;
                        this.total = result.total;
                    })
                    .catch(result=>{
                        console.log(result);
                        this.$message({
                            type: 'error',
                            message: '系统错误,我们正在和程序员小哥哥勾兑!!'
                        });
                    });
            },
            //删除
            handleDel: function (index, row) {
                this.$confirm('确认删除该记录吗?', '提示', {
                    type: 'warning'
                }).then(() => {//点击确定
                    this.listLoading = true;

                    this.$http.delete("/dept/"+row.id)
                        .then(result=>{
                            this.listLoading = false;
                            result = result.data;//AjaxResult success:true/false
                            if(result.success){//删除成功
                                this.$message({
                                    type: 'success',
                                    message: result.message
                                });
                                //重新加载页面数据  要  要不要定位到第一页
                                this.currentPage = 1;
                                this.getDepartments();
                            }else{
                                this.$message({
                                    type: 'error',
                                    message: result.message
                                });
                                //重新加载页面数据  要  要不要定位到第一页
                                this.currentPage = 1;
                                this.getDepartments();
                            }
                        })
                        .catch(result=>{
                            this.listLoading = false;
                            console.log(result);
                            this.$message({
                                type: 'error',
                                message: '系统错误,我们正在和程序员小哥哥勾兑!!'
                            });
                        })
                }).catch(() => {//点击取消按钮

                });
            },
            //显示编辑界面
            handleEdit: function (index, row) {
                this.getDeptTree();//点击按钮的时候触发加载部门树
                this.title = "编辑";
                this.saveFormVisible = true;
                this.saveForm = Object.assign({}, row);//克隆一份数据用来做回显
            },
            //显示新增界面
            handleAdd: function () {
                this.getDeptTree();//点击按钮的时候触发加载部门树
                this.title = "新增";
                this.saveFormVisible = true;
                this.saveForm = {//表格初始化
                    id:null,
                    name: "",
                    sn: "",
                    state: 0,
                    manager: null,
                    parent: null
                };
            },
            //编辑
            saveSubmit: function () {
                // this.$refs.saveForm 找到saveFrom
                this.$refs.saveForm.validate((valid) => {
                    if (valid) {// 表单校验成功
                        this.$confirm('确认提交吗？', '提示', {})
                            .then(() => {//点击确定要提交
                                this.saveLoading = true;//开启按钮忙等
                                //NProgress.start();
                                let para = Object.assign({}, this.saveForm);
                                //处理后端需要的数据格式
                                if(para.parent){// [2,7]
                                    para.parent = {"id":para.parent[para.parent.length-1]}
                                }

                                this.$http.post("/dept/save",para)
                                    .then(result=>{
                                        this.saveLoading = false;//关闭按钮忙等
                                        result = result.data;//AjaxResult success:true/false
                                        if(result.success){//删除成功
                                            this.$message({
                                                type: 'success',
                                                message: result.message
                                            });
                                            //重新加载页面数据  要  要不要定位到第一页
                                            this.currentPage = 1;
                                            this.getDepartments();
                                            this.$refs['saveForm'].resetFields();//重置表单校验
                                            this.saveFormVisible = false;//关闭模态框
                                        }else{
                                            this.$message({
                                                type: 'error',
                                                message: result.message
                                            });
                                            //重新加载页面数据  要  要不要定位到第一页
                                            this.currentPage = 1;
                                            this.getDepartments();
                                        }
                                    })
                                    .catch(result=>{
                                        this.saveLoading = false;//关闭按钮忙等
                                        console.log(result);
                                        this.$message({
                                            type: 'error',
                                            message: '系统错误,我们正在和程序员小哥哥勾兑!!'
                                        });
                                    })
                            });
                    }
                });
            },
            selsChange: function (sels) {//复选框勾选的时候触发 当前复选框选中的所有行的数据
                this.sels = sels;
            },
            //批量删除
            batchRemove: function () {
                //批量删除注释掉  toString();
                var ids = this.sels.map(item => item.id);// .toString();// [1,2,5]  1,2,5
                this.$confirm('确认删除选中记录吗？', '提示', {
                    type: 'warning'
                }).then(() => {
                    this.listLoading = true;
                    //NProgress.start();
                    console.log(ids);
                    this.$http.patch("/dept",ids)
                        .then(result=>{
                            this.listLoading = false;
                            result = result.data;//AjaxResult success:true/false
                            if(result.success){//删除成功
                                this.$message({
                                    type: 'success',
                                    message: result.message
                                });
                                //重新加载页面数据  要  要不要定位到第一页
                                this.currentPage = 1;
                                this.getDepartments();
                            }else{
                                this.$message({
                                    type: 'error',
                                    message: result.message
                                });
                                //重新加载页面数据  要  要不要定位到第一页
                                this.currentPage = 1;
                                this.getDepartments();
                            }
                        })
                        .catch(result=>{
                            this.listLoading = false;
                            console.log(result);
                            this.$message({
                                type: 'error',
                                message: '系统错误,我们正在和程序员小哥哥勾兑!!'
                            });
                        })


                }).catch(() => {

                });
            },
            getEmployees(){
                this.$http.get("/employee/list")
                    .then(result=>{
                        this.employees = result.data;
                    })
            },
            getDeptTree(){
                this.$http.post("/dept/tree")
                    .then(result=>{
                        this.deptTree = result.data;//List<Department>
                    })
            }
        },
        mounted() {
            this.getDepartments();
            this.getEmployees();
        }
    }

</script>

<style scoped>

</style>